Test 3 · Rust: iron's slow fire

"dad says if u scratch the car it'll rust there first. why tho?"

Mova's choice: option 3 · The right answer: option 3 · right ✓ · Who acts: dad, u, car · What happens: say, scratch, rust · To what, where: tho, car · Speech: someone speaks here

This is test 3 of lesson 13 «Rust: iron's slow fire» of the chemistry course of Mova's primary school. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: the test at school.

The question

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	"	"	PUNCT	_	3 says	punct
2	dad	dad	NOUN	Number=Sing	3 says	nsubj
3	says	say	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	if	if	SCONJ	_	6 scratch	mark
5	u	you	PRON	Abbr=Yes Case=Nom Person=2 PronType=Prs	6 scratch	nsubj
6	scratch	scratch	VERB	Mood=Ind Number=Sing Person=2 Tense=Pres VerbForm=Fin	3 says	ccomp
7	the	the	DET	Definite=Def PronType=Art	8 car	det
8	car	car	NOUN	Number=Sing	6 scratch	obj
9	it	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	11 rust	nsubj
10	'll	will	AUX	VerbForm=Fin	11 rust	aux
11	rust	rust	VERB	VerbForm=Inf	8 car	acl:relcl
12	there	there	ADV	PronType=Dem	11 rust	advmod
13	first	first	ADV	NumForm=Word NumType=Ord	11 rust	advmod
14	.	.	PUNCT	_	3 says	punct
15	why	why	ADV	PronType=Int	16 tho	advmod
16	tho	tho	PRON	Case=Acc Gender=Neut Number=Sing Person=3 PronType=Prs	3 says	obl
17	?	?	PUNCT	_	3 says	punct
18	"	"	PUNCT	_	3 says	punct

#	verb	tense, mood	who	what, whom	where	other	roles by
1	say speech: assert in a quote	present	dad	tho			vn say-37.7-1-1 «NP V how S»: agent=Agent clause=Topic
2	scratch a condition, not said to happen, in a quote	present	u	the car			vn scribble-25.2-1 «NP V NP»: agent=Agent car=Theme
3	rust in a quote	future	car	the car not said here	there	first property	tree rules

One row per clause the reader finds. «not said here»: a role filled from the clause above. «roles by»: a VerbNet class and frame when one fits the verb, else the reader's rules on the tree.

The options

Option 1

The paint turns into rust at a scratch

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 paint	det
2	paint	paint	NOUN	Number=Sing	3 turns	nsubj
3	turns	turn	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	into	into	ADP	_	5 rust	case
5	rust	rust	NOUN	Number=Sing	3 turns	obl
6	at	at	ADP	_	8 scratch	case
7	a	a	DET	Definite=Ind PronType=Art	8 scratch	det
8	scratch	scratch	NOUN	Number=Sing	3 turns	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	turn	present	the paint			rust		at a scratch	vn roll-51.3.1 «NP.theme V PP.source PP.trajectory PP.destination»: agent=Theme into rust=Source at scratch=Trajectory

Option 2

Scratches pull salt out of the air like a magnet

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Scratches	scratch	NOUN	Number=Plur	2 pull	nsubj
2	pull	pull	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
3	salt	salt	NOUN	Number=Sing	2 pull	obj
4	out	out	ADP	_	7 air	case
5	of	of	ADP	_	7 air	case
6	the	the	DET	Definite=Def PronType=Art	7 air	det
7	air	air	NOUN	Number=Sing	2 pull	obl
8	like	like	ADP	_	10 magnet	case
9	a	a	DET	Definite=Ind PronType=Art	10 magnet	det
10	magnet	magnet	NOUN	Number=Sing	2 pull	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	pull	present	Scratches	salt		the air		like a magnet	vn carry-11.4 «NP V NP PP.initial_location»: agent=Agent salt=Theme out air=Initial_Location

Option 3 · ← Mova's choice · ✓ the right answer

The scratch lets air and water reach bare iron

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 scratch	det
2	scratch	scratch	NOUN	Number=Sing	3 lets	nsubj
3	lets	let	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	air	air	NOUN	Number=Sing	3 lets	obj
5	and	and	CCONJ	_	6 water	cc
6	water	water	NOUN	Number=Sing	4 air	conj
7	reach	reach	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	3 lets	xcomp
8	bare	bare	ADJ	Degree=Pos	9 iron	amod
9	iron	iron	NOUN	Number=Sing	7 reach	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	let	present	the scratch	air and water					tree rules
2	reach	present	air and water not said here	bare iron					vn body_motion-49.2-1-1 «NP V NP ADV»: agent=Agent iron=Theme

Option 4

The scratch makes the metal much hotter there

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 scratch	det
2	scratch	scratch	NOUN	Number=Sing	3 makes	nsubj
3	makes	make	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	the	the	DET	Definite=Def PronType=Art	5 metal	det
5	metal	metal	NOUN	Number=Sing	3 makes	obj
6	much	much	ADV	_	7 hotter	advmod
7	hotter	hot	ADJ	Degree=Cmp	3 makes	xcomp
8	there	there	ADV	PronType=Dem	3 makes	advmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	make	present	the scratch	the metal		there		hot property	vn build-26.1-1 «NP.asset V NP»: agent=Asset metal=Product

Text: the tests of Mova's primary school, written for Mova (world/data/school/), as the course runner gave them to the student. Trees: Mova's own parse — the en model on the CPU, when the site is built — not checked by a teacher; they may be wrong. Frames: Mova's frames reader (prag), each text read on its own. Elamur Cosmic License.

This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/13-rust-irons-slow-fire/t3/